Mechanical motor.



L-A. GYGAR.

MECHANICAL MOTOR.

APPLICATION nun SEPT- m,

ISIS.

Patented Oct. 16,1917.

2 SHEETSSHEET l J. A. GYGAR.

MECHANICAL MOTOR.

APPLICATION FILED SEPT.

Patentefl 00. 16,1917.

2 SHEETS-SHEET'Z.

JOSEPH ANDREW GYGAR, OF BRISBANE, QUEENSLAND, AUSTRALIA.

MECHANICAL MOTOR.

Specification of Letters Patent.

Patented Oct. 16, 1917..

Application filed September 14, 1915. Serial No. 50,562.

To all whom it may concern:

Be it known that I, J OSEPI-I ANDREW GYGAR, a subject of the King of theUnited Kingdom of Great Britain and Ireland, residing at Brisbane, inthe State of Queensland, Commonwealth of Australia, have inventedcertain new and useful Improvements in Mechanical Motors; and do herebydeclare the following to be a full, clear, and exact description. of theinvention, such as will enable others skilled inthe art to which itappertains to make and use the same.

This invention relates to improvements in mechanical motors applicableto be driven by gas, steam or compressed air.

The objects of the invention are to obtain instantaneous expansion andto maintain the full energy of the force employed at the maximumleverage during the complete travel of the piston.

The invention consists of a revolving cylinder or drum mounted upon ashaft: the cylinder or drum is provided with a circular pathway in whichis fitted an anvil abutment containing necessary valves for theadmission and exhaust of the steam, gas or compressed air used for themotive power.

A semi-circular piston, or a piston connected by a curved arm to acrosshead travels in and around the circular path from one side of theanvil abutment to the other: the circular path is constructedconcentrically with the shaft.

A slotted lever fulcrumed upon a vibrating lever suitably supported, ispivotally connected to the rotary cylinder and to the crosshead; thislever controls the travel of the piston and imparts motion to thecylinder.

On the main shaft is a cam, crank, or eccentric engaging with the top ofa vibrating lever rocking in a suitable bearing on the base plate of themotor.

To fully describe the invention, reference is now made to the drawingsin which Figure 1, is a transverse front elevation of the motor.

Fig. 2, transverse view of cylinder or drum with cover removed.

Fig. 3, transverse back elevation of cylinder or drum.

Fig. 4:, longitudinal side elevation of motor partly in section.

The reference numerals indicate like parts in all figures.

(1) is a cylinder or drum constructed with one solid end and providedwith a cylinder cover (6) at its open end, in which is a slot (7). Thiscylinder is keyed to a shaft (2) revolving in pedestal bearing (12) is avibrating lever keyed upon a spindle (13) rocking in fulcrum bearing(14), pivotally connected to the top end of this lever by a center pin(17) is a vibrating lever (16) solid in the center and slotted at eachend, it is connected to the cylinder cover (6) by a pin (18) securedthereto and to the crosshead (11) by a pin (19) secured thereto; the pin(17) does not move in the lever (16) but the latter rotates upon thepin. The extent of the angular movement of vibrating lever (12) islimited, as the center line of same never passes center line of shaft(2).

(9) is the piston and (10) a connecting arm to a crosshead (11), boththe piston and the crosshead traveling in and around the circular pathof the cylinder.

(8) is an anvil abutment fixed in the circular path in which are fittednecessary valves for controlling the propelling force,

but which are not shown in the drawings being outside of the scope ofthe present invention.

(4:) is a crank, cam or eccentric integral with the shaft (2) orfastened thereto by any method permitting the adjustment of angle ofthrow thereof, which engages with the top of a vibrating lever (15)keyed to the spindle (13) of the fulcrum. bearing (14:).

(5) is a space of suitable dimensions for fastening to the shaft (2),necessary mechafiism for operating the valves of the cylin- All fourfigures of the drawings show the relative positions of the various partsat the moment of the impelling force entering the motor.

In working the invention the impelling force is admitted through valvesin the anvil abutment, into the space between the latter and the piston;the piston immediately moves forward, and the slotted arm starts to dipdownward, due to the pin (19) fixed to the crosshead (11), and as theimpelling force expands and thus loses power the increased leveragegained by the pin (19) moving outward to the end of lever (16), not onlycompensates for any loss of power but also allows; the piston to.rapidly get away, in addition to gaining further leverage due to pin(18) also moving inward Both the cylinder and-piston rotate at the sametime but at varying peripheral speeds in the following manner :At themoment dead center of an engine; when the dead cen ter 1s passed, thepropelling power 111- expanding, forces theipiston connected to thecrossheadi (:11). by the rod (10) around theannular pathv of. thecylinder at a constant accelerating speed in advance of the cylinder,which follows, rotating at a lesser rate of speed. f a As the arm (-16)rotates upon the pin (17:), the distance,- cf the-pin (19) from thecentervv pin increases until the pin (19) has reached the extreme limitof the slot-in arm (16) the pin (18) at the-sametime moves inward towardthe center; pin, whenthe po sitions arereversed' and thepin (-19) startstoitgrav'el inward toward the center pin, and the pin (18) outward, thisdifferential dual motionoccurs inone complete revolution of the armaround the pin 'llhe-iim pelling force acts between the adjacent ends ofthe abutment (8) and piston (9) when they are in the position shown inFig-.- 2;.

The adjacent faces of: these two elements are of substantially the samearea. The impelling force causes the piston (9) to move rapidly'i'nthecircularpathway of-"thecylinderfrom the front end of theabut ment-(8)", which causes the cross head' (151) to move quickly toward the rearor right hand end of the abutment As thepis ton (-11) thus moves, thepin (19)- moves downwardly-intheslot (7) of-the cylinder and outwardlyinthe slot (-16) ofthe vi brating lever (-16) thelatterrotating on; itspivot (17). As the vibrating lever (=16) dips-or rotates on its pivot(17) the connection (18) between the cylinder and said lever (16)-causes the cylinder to rotate a relativelyslight distance, with theresult that when the cross-head (11); has traveled-to a positionadjacent the right hand or rear end of abutment 8,- the cylinderhas beencansed to rotate a smalldegreeby virtue-of the connection 18) betweenthe cylinder and the slot (16) in the vibrating-lever (16). Thisrotative movement of the vibratinglever (16) causes the pin of thecross-head (-11) to move in a downwardi direction and outwardly in theslot (-16) of the; lever (16), as stated, and causing; the connection(18) between the cylinder, and the lever (16) to move in an upward arcand inwardly. in the slot (16) ofthe lever (16), increasing the leverageof" the lever (16) to facilitate the rotative movement of the cylinderand also facilitate movement of 7 loses ower this increased levera e'ained l. 1,, i .i. i a D C by pin moving" outwardly to the end ofthelever (16), not only compensates for any loss of power but alsopermits the pisof. impulse the relative distance of the pir s. (18) and(19) to the center pin (17) is"'ap-' proXilnately equal, corresponding:-to. the.

ton vtoget away quickly from, the abutme'nt (8), the inward movement ofthe pin (18). with relation tothe lever (16) giving further leverage tosaid lever.

As the cylinder=thus rotates,itbeingfiaed tothe shaft the-latter and thecranli or eccentric (at), connectedto'the shaft, are-no tatedwith theshaft. As said crank oi) ec' centric (4 is rotated in the manner juststated, and beingi -disposed in theslot (15) of thevibrating lever 15the spindle (13) to which said 'lever (15) iS-fiXed}, is caused to rock.The lever (-12)" fixedlyconnected to the spindle is alsocaused to roc-lor vibrate between its position shown in- Fig. 1

and" the center lineof the shaft Elie saidi vibration of the lever(12);c-auses vibration of theleverj 16), producing the aforesaidincreased leverage andthereby.- assisting and facilitating the for-wardmovement of the piston (9).

It being understoodthat the-charge-of the impelling force takesplacebetweenfthe piston (9) and the abutment (8), and that thecylind'errotates at less speed than; the piston during the impulsestroke, it is explained that the pistonfthen lags at the endi'of" theimpulse strokeuntil theabutment ('8) again overtakes the piston, as atthe; commence ment. This lagging stroke of; the piston is the exhauststroke.

' 'Although it might appear that" the rotary motion would be arrestedby; the action of the impelling force againstthe piston (9;) andthere-action ofsame'on: anvil (8'), this is not so, practicehavingproved' that both the piston and cylinder revolve at varyingperipheralrates of speed;

Why-H declare asiny vention, and dc sire to secure by Letters Patentis 1. A rotary engineincluding in CQlIllOl'lliL tion, a shaft, acylinder-keyed tothe shaft and having a circular pathway formed thereinconcentric with saidshaft; anabut- 1 ment fixed in said pathway, apiston. and cross-head connected" together adapted to travel in saidpathwayfa vibrating lever mountedadjacentthe cylinder, a slotted-vi:bratinglever pivotally connected to thegupperend ofthe aforesaid'lever,a connection between the piston and said slotted;vibr;atingleverwhiclris slidable-insaidlever, a connection between the cylinderand'saidslotted vibrating-lever ancl'which' is slidable in the slot of saidslotted lever, and means v between the shaft of the cylindenand thefirst mentioned vibrating lever to vibratethe lat ter and consequentlyshift said slot-ted vibrating lever during rotation oftheldrum.

2. A rotary engine including in combination a shaft, a cylinder keyed tothe shaft and provided with an annular pathway therein concentric withsaid shaft, an abutment fixed in the pathway, a piston and a cross-headconnected together and adapted to travel in saidpathway, a vibratinglever mounted to vibrate adjacent the cylinder, a slotted lever pivotedon said vibrating lever, a pin secured to the cylinder and havingslidable engagement with said slotted lever, a connection between saidslotted lever and cross-head, and means for vibrating the vibratinglever.

3. A rotary engine including in combination a shaft, a cylinder keyed tothe shaft and provided with an annular pathway concentric with saidshaft, an abutment fixed in the pathway, a piston and a cross-headconnected together and adapted to travel in said pathway, a vibratinglever mounted adjacent the cylinder, means to operate said vibratinglever from the shaft, a slotted lever pivoted upon said vibrating lever,a pin secured tothe cylinder and adapted to engage said slotted lever,and a pin attached to the cross-head adapted to engage said slottedlever.

fir- A rotary engine including in combination a shaft, a cylinder keyedto the shaft to rotate therewith and having an annular pathway thereinconcentric with said shaft, an abutment fixed in the pathway, a pistonand a cross-head connected together and adapted to travel in saidpathway, a slotted lever pivotally mounted adjacent the cylinder, amovable connection between the slotted lever and the cylinder, a movableconnection between the cross-head and the slotted lever, and meansoperable from the shaft to shift the slotted lever and its pivotbackwardly and forwardly through a slight are.

5. A rotary engine including in combination, a cylinder keyed to theshaft to rotate therewith and having an annular pathway thereinconcentric with the shaft, driving factors mounted in the pathway, oneof which is fixed therein, a vibrating lever mounted adjacent thecylinder, means to operate said lever from the shaft, and a slottedlever pivotally mounted on the aforesaid vibrating lever and havingconnection with the cylinder and with one of said driving factors.

In testimony whereof, I afiix my signature, in presence of twowitnesses.

JOSEPH ANDREW GYGAR.

\Vitnesses:

E. EARLAND ABELL, OLIVE K. ABELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

